Frequency modulated ultrasonic therapeutic apparatus for bone fracture and method for generating frequency modulated ultrasonic wave

Abstract

A frequency modulated ultrasonic therapeutic apparatus for bone fractures and a method for generating frequency modulated ultrasonic waves are revealed. The frequency modulated ultrasonic therapeutic apparatus includes a control interface, a control unit, a waveform generator circuit and a transducer. The control interface is used to set a plurality of parameters. The control unit coupled to the control interface generates a control signal according to those parameters. The waveform generator circuit is coupled to the control unit and is generating a waveform signal according to the control signal. The transducer converts the waveform signal and produces an ultrasonic wave. The present invention provides different parameters for modulating a frequency of ultrasonic waves. Ultrasonic waves with different frequencies are used to treat bone fractures during the bone healing process of living animals. Thus the fracture healing is speeded up and the recovery time is reduced.

1 . A frequency modulated ultrasonic therapeutic apparatus for a bone fracture of a living animal comprising:
 a control interface used to set a plurality of parameters and display the parameters;   a control unit coupled to the control interface and used for generating a control signal according to the parameters;   a waveform generator circuit coupled to the control unit and generating a waveform signal according to the control signal; and   a transducer that converts the waveform signal to produce an ultrasonic wave;   wherein the control interface set different parameters during a fracture healing of the living animal and the control unit modulates a frequency of the waveform signal according to the different parameters so as to module a frequency of the ultrasonic wave; thus the bone fractures is treated by the ultrasonic wave with different frequencies during the fracture healing of the living animal.   
     
     
         2 . The device as claimed in  claim 1 , wherein the fracture healing includes a plurality of recovery stages and different parameters are set corresponding to the recovery stages for modulation of the frequency of the ultrasonic wave; the frequencies of the ultrasonic wave corresponding to the recovery stages are from high frequency to low frequency so as to treat the bone fracture of the living animal. 
     
     
         3 . The device as claimed in  claim 2 , wherein the plurality of recovery stages includes a first recovery stage, a second recovery stage, and a third recovery stage while the frequency of the ultrasonic wave corresponding to the first recovery stage, the second recovery stage, and the third recovery stage is 3.0 MHz, 1.5 MHz and 0.75 MHz respectively. 
     
     
         4 . The device as claimed in  claim 1 , wherein the frequency modulated ultrasonic therapeutic apparatus for a fracture further includes:
 a display unit that shows an image and the parameters,   
     
     
         5 . The device as claimed in  claim 4 , wherein the control interface is integrated with the display unit. 
     
     
         6 . The device as claimed in  claim 1 , wherein the waveform generator circuit comprising:
 a first oscillator coupled to the control unit and generating a first waveform signal according to the control signal;   a second oscillator coupled to the control unit and generating a second waveform signal according to the control signal; and   a regulator coupled to the first oscillator and the second oscillator for receiving the first waveform signal as well as the second waveform signal and generating the waveform signal.   
     
     
         7 . The device as claimed in  claim 6 , wherein the first oscillator modulates a duty cycle of the first waveform signal and the second oscillator modulates a frequency of the second waveform signal. 
     
     
         8 . The device as claimed in  claim 6 , wherein the first waveform signal is a rectangular wave signal and the second waveform signal is a sine wave or a pulse signal. 
     
     
         9 . The device as claimed in  claim 6 , wherein the waveform generator circuit further comprising:
 an amplifier that is coupled to the regulator and amplifying the waveform signal.   
     
     
         10 . The device as claimed in  claim 6 , wherein the first oscillator is a multivibrator. 
     
     
         11 . The device as claimed in  claim 1 , wherein the control unit is a beamforming control unit. 
     
     
         12 . The device as claimed in  claim 1 , wherein the transducer is a probe. 
     
     
         13 . The device as claimed in  claim 1 , wherein the transducer is a piezoelectric transducer. 
     
     
         14 . The device as claimed in  claim 1 , wherein the frequency modulated ultrasonic therapeutic apparatus for bone fractures further includes: a coupling circuit that is coupled between the waveform generator circuit and the transducer and is used for coupling the waveform signal generated by the waveform generator circuit 
     
     
         15 . The device as claimed in  claim 1 , wherein a site of the bone fracture of the living animal includes a plurality of micro/nanobubbles and the ultrasonic wave acts on the micro/nanobubbles. 
     
     
         16 . A method for generating frequency modulated ultrasonic waves that are applied to treat a bone fracture of a living animal comprising the steps of:
 providing a plurality of parameters;   generating a waveform signal according to the parameters; and   converting the waveform signal to an ultrasonic wave;   wherein different parameters are provided during a fracture healing of the living animal and a frequency of the waveform signal is modulated according to the different parameters so as to module a frequency of the ultrasonic wave; thus the bone fractures is treated by the ultrasonic wave with different frequencies during the fracture healing of the living animal.   
     
     
         17 . The method as claimed in  claim 16 , wherein the fracture healing includes a plurality of recovery stages and different parameters are provided corresponding to the recovery stages for modulation of the frequency of the ultrasonic wave; the frequencies of the ultrasonic wave corresponding to the recovery stages are from high frequency to low frequency so as to treat the bone fracture of the living animal. 
     
     
         18 . The method as claimed in  claim 16 , wherein the plurality of recovery stages includes a first recovery stage, a second recovery stage, and a third recovery stage while the frequency of the ultrasonic wave corresponding to the first recovery stage, the second recovery stage, and the third recovery stage is 3.0 MHz, 1.5 MHz and 0.75 MHz respectively. 
     
     
         19 . The method as claimed in  claim 16 , wherein the method further comprising a step of displaying the parameters. 
     
     
         20 . The method as claimed in  claim 16 , wherein the step of generating a waveform signal according to the parameters further includes a step of:
 generating a control signal according to the parameters so as to produce the waveform signal according to the control signal.   
     
     
         21 . The method as claimed in  claim 16 , wherein the step of generating a waveform signal according to the parameters further includes steps of:
 generating a first waveform signal according to the parameters,   generating a second waveform signal according to the parameters, and   generating the waveform signal according to the first waveform signal and the second waveform signal,   
     
     
         22 . The method as claimed in  claim 21 , wherein. in the steps of generating a first waveform signal as well as a second waveform signal according to the parameters, a duty cycle of the first waveform signal and a frequency of the second waveform signal are modulated according to the parameters. 
     
     
         23 . The method as claimed in  claim 21 , wherein the first waveform signal is a rectangular wave signal and the second waveform signal is a sine wave or a pulse signal. 
     
     
         24 . The method as claimed in  claim 21 , wherein the method further comprising a step of: amplifying the waveform signal. 
     
     
         25 . The method as claimed in  claim 16 , wherein the method further comprising a step of: coupling the waveform signal for converting the waveform signal to generate the ultrasonic wave. 
     
     
         26 . The method as claimed in  claim 16 , wherein a site of the bone fracture of the living animal includes a plurality of micro/nanobubbles and the ultrasonic wave acts on the micro/nanobubbles.